Estimation of Groundwater Recharge of Yadalavagu SubBasin using Rainfall Infiltration Factor Method, and GIS,Prakasam district, Andhra Pradesh, India

B. Umamaheswara Rao; Prof P. Sankara Pitchaiah

Volume : V, Issue : IX, September - 2015

Estimation of Groundwater Recharge of Yadalavagu SubBasin using Rainfall Infiltration Factor Method, and GIS,Prakasam district, Andhra Pradesh, India

B. Umamaheswara Rao, Prof P. Sankara Pitchaiah

Abstract :

Results of the present study describe the groundwater recharge of Yadalavagu sub–basin using rainfall infiltration factor method, Prakasam district, Andhra Pradesh. It includes the groundwater recharge in a Yadalavagu basin through rainfall, other sources like canals, irrigation water applied by surface water irrigation, irrigation water applied by groundwater irrigation, tanks and ponds, water conservation structure in both monsoon and post monsoon seasons. Average rainfall of the basin based on the rain gauge stations established in the sub–basin is 612.7 mm based on the received rainfall data from 2004–2014.Based on the Groundwater Estimation Committee (GEC) 97, cumulative rainfall recharge including monsoon and non monsoon seasons; and command and non–command in Yadalavagu sub–basin in a hydrological year is 362.92 ha.m. Groundwater recharge from the rainfall in monsoon is 188.75 ha.m. Non–monsoon Ground water recharge from other sources is 174.18 ha.m. Groundwater recharge from all other sources is 18.22 ha.m. Groundwater recharges from the rainfall in monsoon is 9.22 ha.m and non–monsoon ground water recharge is 9.02 ha.m. Groundwater draft from all other sources is 697.84 ha.m; combined with monsoon recharge about 116.31 ha.m and non–monsoon is 581.53 ha.m.